The purpose of our project is to demonstrate how, as life expectancy increases, life satisfaction tends to increase as well.
Our dataset consists of values listing life satisfaction and life expectancies of various countries over a period of time. Levels of life satisfaction are measured based on the Cantril Ladder. We retrieved the dataset from 9 different data sources:
We created a summary to calculate various helpful observations:
| Entity | Average Life Expectancy | Average Life Satisfaction |
|---|---|---|
| Afghanistan | 61.83 | 3.90 |
| Albania | 77.11 | 5.09 |
| Algeria | 75.11 | 5.69 |
| Angola | 60.01 | 4.42 |
| Argentina | 75.68 | 6.44 |
| Armenia | 73.51 | 4.40 |
| Australia | 81.98 | 7.32 |
| Austria | 80.75 | 7.25 |
| Azerbaijan | 70.90 | 4.84 |
| Bahrain | 76.34 | 5.76 |
| Bangladesh | 70.36 | 4.76 |
| Belarus | 70.89 | 5.62 |
| Belgium | 80.14 | 7.04 |
| Belize | 69.71 | 6.20 |
| Benin | 59.58 | 3.50 |
| Bhutan | 69.43 | 5.20 |
| Bolivia | 66.58 | 5.74 |
| Bosnia and Herzegovina | 76.14 | 4.97 |
| Botswana | 61.04 | 4.25 |
| Brazil | 73.90 | 6.79 |
| Bulgaria | 74.04 | 4.16 |
| Burkina Faso | 57.34 | 3.96 |
| Burundi | 55.08 | 3.49 |
| Cambodia | 66.58 | 4.02 |
| Cameroon | 55.59 | 4.40 |
| Canada | 81.34 | 7.47 |
| Central African Republic | 47.13 | 3.80 |
| Chad | 50.48 | 3.93 |
| Chile | 78.57 | 6.39 |
| China | 75.27 | 4.92 |
| Colombia | 73.39 | 6.33 |
| Comoros | 62.04 | 3.77 |
| Congo | 62.07 | 4.16 |
| Costa Rica | 78.88 | 7.20 |
| Cote d’Ivoire | 51.86 | 3.99 |
| Croatia | 76.82 | 5.59 |
| Cuba | 78.22 | 5.42 |
| Cyprus | 79.67 | 6.10 |
| Czech Republic | 77.74 | 6.46 |
| Democratic Republic of Congo | 58.00 | 4.33 |
| Denmark | 79.46 | 7.72 |
| Djibouti | 60.12 | 4.82 |
| Dominican Republic | 72.79 | 5.08 |
| Ecuador | 75.17 | 5.69 |
| Egypt | 70.44 | 4.67 |
| El Salvador | 72.01 | 5.86 |
| Estonia | 75.49 | 5.41 |
| Ethiopia | 64.20 | 4.52 |
| Finland | 80.36 | 7.47 |
| France | 81.40 | 6.69 |
| Gabon | 64.64 | 4.12 |
| Georgia | 72.77 | 4.07 |
| Germany | 80.15 | 6.72 |
| Ghana | 60.97 | 4.70 |
| Greece | 80.41 | 5.57 |
| Guatemala | 71.66 | 6.20 |
| Guinea | 58.33 | 3.70 |
| Guyana | 65.74 | 5.99 |
| Haiti | 61.67 | 4.09 |
| Honduras | 72.54 | 5.20 |
| Hong Kong | 82.92 | 5.44 |
| Hungary | 74.75 | 4.98 |
| Iceland | 82.11 | 7.37 |
| India | 66.74 | 4.76 |
| Indonesia | 68.23 | 5.23 |
| Iran | 74.14 | 4.97 |
| Iraq | 68.87 | 4.70 |
| Ireland | 80.46 | 7.07 |
| Israel | 81.51 | 7.23 |
| Italy | 81.99 | 6.27 |
| Jamaica | 75.02 | 5.65 |
| Japan | 83.02 | 6.06 |
| Jordan | 73.47 | 5.50 |
| Kazakhstan | 67.78 | 5.72 |
| Kenya | 62.84 | 4.34 |
| Kuwait | 74.14 | 6.36 |
| Kyrgyzstan | 69.07 | 4.98 |
| Laos | 63.73 | 5.01 |
| Latvia | 72.95 | 5.11 |
| Lebanon | 78.37 | 5.01 |
| Lesotho | 51.53 | 4.90 |
| Liberia | 59.71 | 3.88 |
| Libya | 71.67 | 5.68 |
| Lithuania | 73.11 | 5.65 |
| Luxembourg | 80.90 | 6.98 |
| Macedonia | 74.91 | 4.75 |
| Madagascar | 63.95 | 3.95 |
| Malawi | 57.97 | 4.32 |
| Malaysia | 74.33 | 5.88 |
| Mali | 55.54 | 4.12 |
| Malta | 80.19 | 6.24 |
| Mauritania | 62.20 | 4.41 |
| Mauritius | 74.05 | 5.56 |
| Mexico | 76.18 | 6.83 |
| Moldova | 69.81 | 5.60 |
| Mongolia | 67.79 | 4.79 |
| Montenegro | 75.77 | 5.17 |
| Morocco | 74.74 | 4.95 |
| Mozambique | 54.27 | 4.72 |
| Myanmar | 66.16 | 4.41 |
| Namibia | 58.85 | 4.73 |
| Nepal | 68.06 | 4.55 |
| Netherlands | 80.82 | 7.46 |
| New Zealand | 80.94 | 7.33 |
| Nicaragua | 73.81 | 5.44 |
| Niger | 57.00 | 4.05 |
| Nigeria | 50.76 | 4.94 |
| Norway | 81.26 | 7.55 |
| Oman | 75.92 | 6.85 |
| Pakistan | 65.22 | 5.21 |
| Palestine | 72.53 | 4.61 |
| Panama | 76.94 | 6.85 |
| Paraguay | 72.33 | 5.51 |
| Peru | 73.77 | 5.52 |
| Philippines | 68.40 | 5.00 |
| Poland | 76.45 | 5.80 |
| Portugal | 80.15 | 5.22 |
| Qatar | 77.51 | 6.57 |
| Romania | 74.14 | 5.28 |
| Russia | 68.88 | 5.49 |
| Rwanda | 63.41 | 3.82 |
| Saudi Arabia | 73.70 | 6.58 |
| Senegal | 64.30 | 4.27 |
| Sierra Leone | 48.32 | 4.10 |
| Singapore | 81.83 | 6.60 |
| Slovakia | 75.94 | 5.92 |
| Slovenia | 79.80 | 5.90 |
| Somalia | 54.67 | 5.09 |
| South Africa | 56.85 | 4.89 |
| South Korea | 80.52 | 5.87 |
| South Sudan | 56.07 | 3.95 |
| Spain | 81.94 | 6.56 |
| Sri Lanka | 74.48 | 4.30 |
| Sudan | 63.04 | 4.38 |
| Suriname | 70.79 | 6.27 |
| Swaziland | 52.91 | 4.87 |
| Sweden | 81.54 | 7.38 |
| Switzerland | 82.44 | 7.57 |
| Syria | 71.49 | 4.02 |
| Taiwan | 78.95 | 6.19 |
| Tajikistan | 69.66 | 4.68 |
| Tanzania | 61.22 | 3.83 |
| Thailand | 73.96 | 6.14 |
| Togo | 57.77 | 3.11 |
| Trinidad and Tobago | 69.67 | 6.30 |
| Tunisia | 75.06 | 4.95 |
| Turkey | 74.21 | 5.27 |
| Turkmenistan | 67.18 | 5.80 |
| Uganda | 57.12 | 4.24 |
| Ukraine | 69.72 | 4.85 |
| United Arab Emirates | 76.52 | 6.85 |
| United Kingdom | 80.41 | 6.86 |
| United States | 78.59 | 7.17 |
| Uruguay | 76.66 | 6.21 |
| Uzbekistan | 70.18 | 5.62 |
| Venezuela | 73.72 | 6.65 |
| Vietnam | 75.22 | 5.33 |
| Yemen | 63.83 | 4.08 |
| Zambia | 56.80 | 4.81 |
| Zimbabwe | 53.66 | 4.14 |
We grouped the data by using the mean aggregate function because this provides a good representation of each country’s statistics. It is more useful to show their averages rather than data from a particular year because this minimizes outliers.
The purpose of chart 1 is to detail how as life satisfaction increases, the range of life expectancy tends to cluster towards a higher life expectancy. As you can see, the general trend is: as life satisfaction goes up, life expectancy does as well. Ultimately, life satisfaction and life expectancy are correlated, but one does not necessarily cause the other.
This chart compares the average life expectancy and average life satisfaction for each country. Each country is displayed as a different data point, in varying colors. There is a positive general trend: as life expectancy increases, life satisfaction also goes up.
This graphs depicts how life expectancy has increased throughout the 20th and 21st centuries. There is a steady increase in life expectancy. Each data point is the life expectancy of all the countries combined. Although there are some countries that have higher life expectancies, the overall population of the world still experiences an increase in their life spans.